If the refractive index of crown glass is 1.51, its criti...
If the refractive index of crown glass is 1.51, its critical angle is?
48.6°
22.5°
41.5°
45.5°
Correct answer is C
Sin c = (1)/n
= (1)/1.51 = 0.6622
∴ c = sin-1 0.6622 = 41.47
A constantan wire has a cross sectional area of 4 x 10-8m2 and a resistivity of 1.1 x 10-6Ω...
Silicon doped with aluminum and germanium doped with arsenic become? ...
When a transformer has more secondary windings than primary windings, it? ...
The impulse of a force is deduced from Newton's second law as ...
Which of these statements are correct for the pressures in liquids? i. pressure in a liquid at a ...